### Configure Shoehorn Initialization

Source: https://github.com/nerves-project/nerves_ssh/blob/main/README.md

Include :nerves_ssh in the :init list for :shoehorn to ensure it starts automatically. This is a common setup for Nerves projects not using :nerves_pack v0.4.0 or later.

```elixir
config :shoehorn,
  init: [:nerves_runtime, :vintage_net, :nerves_ssh]
```

--------------------------------

### Start NervesSSH in Supervision Tree

Source: https://github.com/nerves-project/nerves_ssh/blob/main/README.md

Integrate NervesSSH into your application's supervision tree by adding NervesSSH as a child. Ensure that :nerves_ssh is NOT configured in config.exs if you choose this method.

```elixir
{NervesSSH, nerves_ssh_options}
```

--------------------------------

### Configure Username/Password Authentication

Source: https://github.com/nerves-project/nerves_ssh/blob/main/README.md

Set up username and password authentication for SSH access. Note that passwords are stored in the clear and this is not recommended for most situations.

```elixir
config :nerves_ssh,
  user_passwords: [
    {"username", "password"}
  ]
```

--------------------------------

### Upgrade NervesSSH Configuration

Source: https://github.com/nerves-project/nerves_ssh/blob/main/README.md

This shell command demonstrates how to replace old NervesFirmwareSSH configuration values with NervesSSH values in your project files.

```sh
grep -RIl nerves_firmware_ssh config/ | xargs sed -i 's/nerves_firmware_ssh/nerves_ssh/g'
```

--------------------------------

### Configure SSH Host Key Checking

Source: https://github.com/nerves-project/nerves_ssh/blob/main/README.md

Add this configuration to your ~/.ssh/config to avoid SSH client errors when rewriting MicroSD cards frequently.

```sshconfig
Host nerves.local
    UserKnownHostsFile /dev/null
    StrictHostKeyChecking no
```

--------------------------------

### Configure Public Key Authentication

Source: https://github.com/nerves-project/nerves_ssh/blob/main/README.md

Specify authorized public SSH keys in your application configuration. This allows clients with matching keys to connect.

```elixir
config :nerves_ssh,
  authorized_keys: [
    "ssh-rsa
    AAAAB3NzaC1yc2EAAAADAQABAAAAgQDBCdMwNo0xOE86il0DB2Tq4RCv07XvnV7W1uQBlOOE0ZZVjxmTIOiu8XcSLy0mHj11qX5pQH3Th6Jmyqdj",
    "ssh-rsa
    AAAAB3NzaC1yc2EAAAADAQABAAACAQCaf37TM8GfNKcoDjoewa6021zln4GvmOiXqW6SRpF61uNWZXurPte1u8frrJX1P/hGxCL7YN3cV6eZqRiF"
  ]
```

```elixir
config :nerves_ssh,
  authorized_keys: [
    File.read!(Path.join(System.user_home!, ".ssh/id_rsa.pub"))
  ]
```

--------------------------------

### Add NervesSSH Dependency

Source: https://github.com/nerves-project/nerves_ssh/blob/main/README.md

Add the nerves_ssh library to your project's dependencies. This is typically done when not using :nerves_pack v0.4.0 or later.

```elixir
def deps do
  [
    {:nerves_ssh, "~> 0.1.0", targets: @all_targets}
  ]
end
```

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